Figure 1

Schematic illustration of optimal coating thickness on different sizes of MnFe2O4(6 nm and 12 nm). The color bar represents the magnitude of the magnetic field strength of the MnMNC cores. Solid and dashed lines represent the boundaries of PEG coating layers, respectively. Starting from the center, the lines indicate PEG1k, PEG2k, PEG5k, PEG10k, and PEG20k.

© De Gruyter